With Particulate Solids Movement During Use Or Agitating Means Therefor Patents (Class 55/474)
  • Patent number: 4133660
    Abstract: A system for removing pollutants from gases in which one or more beds of activated char are formed in a housing having an upper chamber and a lower chamber. A first series of beds of activated char extend through both the lower chamber and the upper chamber and an additional series of beds of activated char are disposed only in the lower chamber. A system of passages and baffles are provided in the housing to direct the gases in the upper chamber through the first series of beds of activated char, and the gases in the lower chamber through the first series of beds of activated char and then through the additional beds of activated char, before the gases exit from the housing.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: January 9, 1979
    Assignee: Foster Wheeler Energy Corporation
    Inventor: Peter Steiner
  • Patent number: 4126435
    Abstract: Apparatus for separating finely divided solids from gas is described comprising a generally cylindrical vessel having a gas inlet opening and a gas outlet opening, a solids inlet opening at the top of the vessel and a solids outlet opening at the bottom of the vessel. First generally cylindrical wall member having a diameter less than that of the vessel is disposed in the vessel to provide an elongated annular space lying between it and the vessel wall. The first cylindrical wall member is in sealing engagement with the top portion of the vessel. A second generally cylindrical wall member having a diameter less than the first wall member is disposed inside the first wall member to provide an elongated annular space between the two wall members which space is filled with a solid particulate contact material and which moves by gravity flow downwardly through the annular space.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: November 21, 1978
    Assignee: Combustion Power Company, Inc.
    Inventor: Richard G. Reese
  • Patent number: 4120668
    Abstract: A process for removing entrained liquid and volatilized melt from a gaseous stream produced in molten salt processing wherein the gaseous stream is passed through fluidized, solid particulate material and entrained melt solidifies on the particulate material.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: October 17, 1978
    Assignee: Pullman Incorporated
    Inventor: Lowell David Fraley
  • Patent number: 4061476
    Abstract: Pulverulent solid sorption agent is injected into a stream of noxious-contaminant-containing gas subjected to intensive turbulence and then separated from the gas. The solid sorption agent is optionally reused until exhausted, or purified before reuse. Apparatus is provided for the process.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: December 6, 1977
    Assignee: Heinz Holter
    Inventors: Heinz Holter, Heinz Gresch, Heinrich Igelbuscher
  • Patent number: 4044102
    Abstract: Apparatus for treating exhaust gases comprising a catalyst bed through which the exhaust gas is passed whereby nitrogen oxides and dust present therein are removed from the gas, said catalyst bed being designed such that the catalyst therein is discharged from the bed continuously or intermittantly while being fed in an amount that can compensate for the discharged amount, a heating device for heating the catalyst discharged from the bed to a temperature in a range from about 700.degree. to 1200.degree. C. for reactivation of the catalyst and separation of the dust accumulated on the bed surface and retained in the interstices between the catalyst particles therein, and a device for discharging sulfur dioxides produced during the course of heating the catalyst. This apparatus is very effective in simultaneously removing the nitrogen oxides and the dust from exhaust gases such as boiler exhaust gases.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: August 23, 1977
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Ryoji Muraki, Masao Endo, Nobuaki Aoki, Masahiro Takeshita
  • Patent number: 4038049
    Abstract: Apparatus for the high performance collection of gas entrained particulate, especially submicron particulate, consisting of a fluidized bed of collection sites with an electric field imposed on the bed so that the particulate to be collected, which is charged prior to entering the bed with the fluidizing gas, is electrically induced to agglomerate with the bed particles and the collected matter is removed in a fluidized state with the bed particles, which can consist of the collected material itself.
    Type: Grant
    Filed: October 18, 1974
    Date of Patent: July 26, 1977
    Assignee: Massachusetts Institute of Technology
    Inventors: James R. Melcher, Kenneth S. Sachar, Karim Zahedi
  • Patent number: 4035170
    Abstract: A continuously regenerating granular filter operable at high temperature and pressure includes a filter chamber with a gas inlet and gas outlet. A filter bed in the chamber located between the gas inlet and gas outlet is adapted to hold a filter medium and permit gas to flow therethrough. The filter bed includes inlet means and outlet means for enabling the filter medium to move through the filter bed. The filter also includes filter medium cleaning means for cleaning the filter medium. Filter medium transport means operates to transport the filter means from the outlet means, through the cleaning means and to the inlet means.
    Type: Grant
    Filed: January 8, 1976
    Date of Patent: July 12, 1977
    Assignee: The United States of America as represented by the Administrator of Environmental Protection Agency
    Inventors: Dean Everett Lear, Jr., Alan Howard Schmid, Henry Ford Harding Wigton
  • Patent number: 4017278
    Abstract: Finely divided solids are removed from a feed gas by passing the gas through an elongated annular mass of solid particulate contact material held between two generally concentric cylindrical walls. The outer wall is louvered having vanes outwardly inclined to the vertical at 15.degree. to 80.degree. and the louver openings are of such width that most of the particles of contact material are capable of passing through them. The inner wall is perforated to permit passage of gas through the wall and may be louvered similarly to the outer wall but having the louver vanes inwardly inclined. The finely divided solids are entrained or trapped in the mass of contact material which is moved downwardly through and out of the annular space between the two concentric cylindrical walls. The contact material is then treated to separate entrained finely divided solids and returned to the upper end of the annular space.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: April 12, 1977
    Assignee: Combustion Power Company, Inc.
    Inventor: Richard G. Reese
  • Patent number: 4010014
    Abstract: A fluid filter construction comprises a mass of filtering material, such as activated charcoal, in which fluid flow passage forming members are embedded. The filtering material itself serves as the means for sealing the filter against leakage of unfiltered fluid into or out of the filter and against bypassing from the inlet to the outlet side of the filter.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: March 1, 1977
    Assignee: Barnebey-Cheney Co.
    Inventors: Herbert L. Barnebey, Bertrand Japikse
  • Patent number: 3964889
    Abstract: This invention relates to apparatus for charging and emptying filter material in a continuous filter silo for the purification or cleaning of flue gases, and in one embodiment comprises a layer of filter material is located between two substantially vertically arranged wall sections which have apertures, and wherein the layer of filter material, defined by the wall sections which are of annular cross section, is subdivided by at least 4 vertically arranged intermediate walls into segments, and wherein means are provided for the controlled feed of flue gases such that selectively two of the segments at a time are excepted from the action of flue gas, thereby permitting the renewal of the filter material, while the remaining segments being under full action of flue gas.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: June 22, 1976
    Assignee: Deutsche Babcock & Wilcox Aktiengesellschaft
    Inventor: Friedrich Lachnit